Electrical connecter



Dec. 21, 1937. w H, FRANK 2,103,071

ELECTRICAL CONNECTER Filed March 7, 1956 i INVENTOR.

ATTORNEY.

Patented Dec. 21, 1937 UNITED STATES PATENT OFFICE 2,103,071 ELECTRICAL CONNECTER William H. Frank, Detroit, Mich.

Application March 7, 1936, Serial No. 67,74l

' and the head of the screw-is arranged to direct 7 Claims.

This application relates to electrical connecters and more particularly to connecters in the nature of clamps for electrical conductor terminals, such as those of cartridge fuses of the blade type. The principal object of the present'invention is to provide a connecter which includes a stationary body and a, clamping screw so positioned that when threaded home it will cause a surface of the terminal to move along and against a surface of the connecter body to produce a wiping contact between the surfaces and will clamp the terminal firmly in place and with good electrical contact in and to the body of the connecter.

This application is a continuation in part of my prior application Serial No. 717,990, flled March 29, 1934.

Further objects of the invention will be readily apparent upon reference to the following detailed description of the embodiments shown in the appended drawing. In this drawing, I

Fig. 1 is an elevation view of a connecter arranged for clamping a blade terminal in place;

Fig. 2 is a plan view thereof;

Fig. 3 is an end view of a modified form of connecter for clamping a blade terminal in place;

Fig. 4 is a fragmentary exploded view of the same.

Referring to the drawing it will be seen that the connecter of Figs.- 1 and 2 comprises a stationary body l0 having walls ll, l2, and M. The

wall H has two tapped holes for the reception of screws I! which secure the body to an insulation base I9 and thereby anchor the body with respect to the base so that the parts which cooperate with the body may be manipulated to clamp a terminal in place in the connecter.

For clamping a member 42, such asthe blade end or terminal of. a cartridge fuse or the like to the body, and thereby eiectricallyconnecting it thereto, there is provided for cooperation with the outside surface ,33 of the wall ii an extension in the form of a rib or flange 6| providing a V-shaped groove-or pocket 62 into which the member 42 may be biased by washer head screws 63 threaded into tapped holes 84 of the body at the upper part of the latter. ,Tightening of the screws 63, which are at an acute angle to between the surface of the blade and the Slll-' face 33 of the body.

I In Figs. 3 and 4; there is disclosed a modified form of connecter for a blade end of a cartridge fuse. In the modification of Figs. 3 and 4 the screw means comprises a screw 10 which threads into a tapped hol Illa whose axis is atan acute angle with respec to the surface 33 along and against which is seed the blade, not indicated,

a clamping plate H, whose edge 12 is hooked around the edge I3 of the connecter to form a pivotal mounting for the clamping plate H, into engagement with the upper edge of the blade and cause the blade to be urged along and against the surface 33 and its lower edge to be directed into the pocket or groove 62 between the wall 33 and the flange GI projecting from the wall l2 of the connecter. A coned coil spring 14 is disposed between the upper surface of the wall II and the clamping plate H and is received within a crowned portion 15 of such clamping plate, and such spring, surrounding the screw 10, normally tends to raise the free edge of the clamping plate ll clear of the connecter II to permit facile association of a blade with the connecter,

whereupon tightening of the screw 10 is all that is necessary to clamp the blade tightly and firmly in place.

Now having described the connecters herein illustrated, reference will be had'to the claims which follow for a determination of the monopoly sought to be covered herein.

I claim:

1. For use with a blade terminal, an electrical connecter comprising a body having a base engaging wall having a flange projecting upwardly therefrom and a flat face side wall also-projecting upwardly therefrom, to a considerable extent, the adjacent faces of the base, the side wall, and the flange being proportioned and arranged to form an externally exposed pocket of proper dimension to fit closely the edge of the blade terminal, when the latter is inserted within the connecter and engages the aforesaid adjacent faces, and a screw threaded into the upper part of said wall at an obtuse angle to the terminal engaging flat face of the side wall so that its head causes the lower edge of. the terminal to be wedged into the pocket and the flatjsurface gaging wall having a flange projecting upwardly therefrom and a flat face sde wall also projecting upwardlytherefrom, to a considerable extent, the adjacent faces of the base, the side wall,- and the flange being proportioned and arranged to form an externally exposed pocket of proper dimension to flt closely the edge of the blade terminal, when the latter is inserted within the connecter and engages the aforesaid adjacent faces, and a screw threaded into the ppper part of said wall at an obtuse angle to the terminal engaging flat face of the sidewall so that its'head causes the lower-edge of the -ter- .minal to be wedged into the pocket and the iii) flat surface of the terminal to be biased along and against the terminal engaging flat face of the side wall and towards the pocket, the connecter having a clamping plate between the screw head and the upper part of the wall into which the screw is threaded, the clamping plate being pivotally mounted on such upper part.

3. For use with a blade terminal, an electrical connecter comprising a body having a base engaging wall having a flange projecting upwardly therefrom and a flat face side wall also projecting upwardly therefrom, to a considerable extent, the adjacent faces of the base, the side wall, and the flange being proportioned and arranged to form an externally exposed pocket of proper dimension to fit closely the edge of the blade terminal, when the latter is inserted within the connecter and engages the aforesaid adjacent faces, and a screw threaded into the upper part of said wall at an obtuse angle to the terminal engaging flat face of the side wall so that its head causes the lower edge of the terminal to be wedged into the pocket and the flat surface of the terminal to be biased along and against the terminal engaging flat face of the side wall and towards the pocket, the connecter having a clamping plate between the screw head and the upper part of the wall into which the screw is threaded, the clamping plate being pivotally mounted on such upper part, by having an edge of itself hooked around an edge of such upper part.

4. For use with a blade terminal, an electrical connecter comprising a body having a base engaging wall having a flange projecting upwardly therefrom and a flat face side wall also projecting upwardly therefrom, to a considerable extent, the adjacent faces of the base, the side wall, and the flange being proportioned and arranged to form an externally exposed pocket of proper dimension to fit closely the edge of the blade terminal, when the latter is inserted within the connecter and engages the aforesaid adjacent faces, and a screw threaded into the upper part of said wall at an obtuse angle to the terminal engaging flat face of the side wall so that its head causes the lower edge of the terminal to be wedged into the pocket and the flat surface of the terminal to be biased along and against the terminal engaging flat face of the side wall and towards the pocket, the connecter having a clamping plate between the screw head and the upper part of the wall into which the screw is threaded, the clamping plate being pivotally mounted on such upper part, by having an edge of itself hooked around an edge of such upper part, the screw passing through said plate, and resilient means normally tending to rock said plate on its pivotal mounting so that its free edge is considerably distant from the upper part of the connecter.

5. For use with a blade terminal, an' electrical connecter comprising a body having a base engaging wall having a flange projecting upwardly therefrom and a flat face side wall also projecting upwardly therefrom, to a considerable extent, the adjacent faces of the base, the side wall, and the flange being proportioned and arranged to form an externally exposed pocket of proper dimension to fit closely the edge of the blade terminal, when the latter is inserted within the connecter and engages the aforesaid adjacent faces, and a screw' threaded into the upper part of said wall at an obtuse angle to the terminal engaging flat face of the side wall so that its head causes the lower edge of the terminal to be wedged into the pocket and the flat surface of the terminal to be biased along and against the terminal engaging flat face of the side wall and towards the pocket, the connecter having a clamping plate between the screw head and the upper part of the wall into which the screw is threaded, the clamping plate being pivotally mounted on such upper part, the screw passing through said plate, and resilient means normally tending to rock said plate on its pivotal mounting so that its free edge is considerably distant from the upper part of the connecter. 6. For use with a blade terminal, an electrical connecter comprising a body having a base engaging wall having a flange projecting upwardly therefrom and a flat face side wall also projecting upwardly therefrom, to a considerable extent, the adjacent faces of the base, the side wall, and the flange being proportioned and arranged to form an externally exposed pocket or proper dimension to fit closely the edge of the blade terminal, when the latter is inserted within the connecter and engages the aforesaid adjacent faces, and a screw threaded into the upper part of said wall at an obtuse angle to the terminal engaging flat face of the side wall so that its head causes the lower edge of the terminal to be wedged into the pocket and the flat surface of the terminal to be biased along and against the terminal engaging flat face of the side wall and towards the pocket, the connecter having a clamping plate between the screw head and the upper part of the wall into which the screw is threaded, the clamping plate being pivotally mounted on such upper part, the screw passing through said plate, and resilient means between the plate and the upper of the connecter normally tending to rock said plate on its pivotal mounting so that its free edge is considerably distant from the upper part of the connecter.

'7. For use with a blade terminal, an electrical connecter comprising a body having a base engaging wall having a flange projecting upwardly therefrom and a flat face side wall also projecting upwardly therefrom, to a considerable extent, the adjacent faces of the base, the side wall, and the flange being proportioned and arranged to form an externally exposed pocket of proper dimension to fit closely the edge of the blade terminal, when the latter is inserted within the connecter and engages the aforesaid adjacent faces, and a screw threaded into the upper part of said wall at an obtuse angle to the terminal engaging flat face of the side wall so that its head causes the lower edge of the terminal to be wedged into the pocket and the fiat surface of theterminal to be biased along and against the terminal engaging flat face of the side wall and towards the pocket, the connecter having a clamping plate between the screw head and the upper part of the. wall into which the screw is threaded, the

clamping plate being pivotally mounted on such upper part, by having an edge of itself hooked around an edge of such upper part, the screw passing through said plate, and resilient means between the plate and the upper part of the connecter normally tending to rock said plate on its pivotal mounting so that its free edge is considerably distant from the upper part of the connecter.

' WILLIAM H. FRANK. 

